Compare: 他 vs 他

他た

other (esp. people and abstract matters)

他ほか

another place; some other place; somewhere else; outside

N5CommonAdverb

other (esp. people and abstract matters)

彼(かれ)女は彼(かれ)を他(た)の誰かとまちがえた。

She mixed him up with someone else.

ほか他

N5CommonNoun

another place; some other place; somewhere else; outside

他(ほか)の惑星に知的生命体はいるか？

Is there intelligent life on other planets?

同様に振る舞う他(ほか)のイベントでも結構です。

Another event that has the same behaviour would also be fine.